204342477 has 4 divisors (see below), whose sum is σ = 272456640. Its totient is φ = 136228316.

The previous prime is 204342469. The next prime is 204342491. The reversal of 204342477 is 774243402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 204342477 - 2³ = 204342469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204342277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34057077 + ... + 34057082.

It is an arithmetic number, because the mean of its divisors is an integer number (68114160).

Almost surely, 2^204342477 is an apocalyptic number.

It is an amenable number.

204342477 is a deficient number, since it is larger than the sum of its proper divisors (68114163).

204342477 is an equidigital number, since it uses as much as digits as its factorization.

204342477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68114162.

The product of its (nonzero) digits is 37632, while the sum is 33.

The square root of 204342477 is about 14294.8409225147. The cubic root of 204342477 is about 589.0057726313.

Adding to 204342477 its reverse (774243402), we get a palindrome (978585879).

The spelling of 204342477 in words is "two hundred four million, three hundred forty-two thousand, four hundred seventy-seven".